The BioNTech/Pfizer Covid-19 vaccine is 85 per cent effective after the first dose, according to a new Israeli study that supports the UK’s decision to space out doses.
A study of 9,000 healthcare workers found that a single dose reduced the number of people developing symptomatic Covid-19 by 85 per cent after a period of 15 to 28 days following inoculation.
The study, conducted by Sheba Medical Center, a leading research hospital, and published in The Lancet, found it also had an impact on asymptomatic infections, reducing all positive test cases by 75 per cent.
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